CN101097179A - Portable compounds detection device - Google Patents
Portable compounds detection device Download PDFInfo
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- CN101097179A CN101097179A CNA2006100901624A CN200610090162A CN101097179A CN 101097179 A CN101097179 A CN 101097179A CN A2006100901624 A CNA2006100901624 A CN A2006100901624A CN 200610090162 A CN200610090162 A CN 200610090162A CN 101097179 A CN101097179 A CN 101097179A
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Abstract
The invention discloses a portable compound detecting device which is used to detect content of some compound in sample. The portable compound detecting device includes a sample putting area, a reacting area, and detecting element and a postmortem component, the sample which is to be detected enters reacting area via sample putting area, and detecting element is in reacting area, the detecting element can react with the compound in sample to generate gas which enters the postmortem component to check indicating liquid in component for checking the content of the compound.
Description
Technical field
The present invention discloses a kind of portable compounds detection device, particularly about by the chemical characteristic of compound and the gaseous tension principle Portable pick-up unit with detection compound content.
Background technology
The continuous in recent years unworthy dealer of appearance peddles the fake wine that adds methyl alcohol or formaldehyde and desires to make money or profit, so that causes poisoning, causes many blind or dead cases, the health that endangers the common people.At present, include spectrophotometric method, gas chromatography and visual colorimetry for the known check system of check correlative technology field person, wherein, carry out spectrophotometric method and need have spectrophotometer, carry out the gas chromatography rule and need have gas chromatograph, it is not striking that spectrophotometric is taken into account the price of gas chromatograph, only used by research or inspection body usually, can't be effectively prevent in the very first time that the common people from missing and drink fake wine.
See also Fig. 1, it is a kind of flow chart of steps that adopts visual colorimetry with the check methanol content of prior art, and it comprises following steps:
Step S11: provide one to contain the solution of 3% potassium permanganate as reagent;
Step S12: potassium permanganate reagent is splashed in the liquid to be tested;
Step S13: observe liquid to be tested and whether present purple to judge the methanol content in the liquid to be tested.
In the above-mentioned steps, because the methanol content in the liquid to be tested is 0.05% o'clock, splashing into reagent will make liquid to be tested present lavender, methanol content in the liquid to be tested is 0.1% when above, splashes into reagent and will make liquid to be tested present purple, and the methanol content of regulation rice wine is required to be in 0.1% at present, yet, naked eyes are quite subjective for the resolution of lavender and purple, if quite inaccurate as the standard of judging fake wine according to this, and reagent carries inconvenience.
Therefore, because the problems referred to above, the inventor then proposes a kind of portable compounds detection device with implementation and foundation as aforementioned expectation in the present invention through research and design and special topic discussion in many ways.
Summary of the invention
Because above-mentioned problem, fundamental purpose of the present invention provides a kind of portable compounds detection device, particularly about by the chemical characteristic of compound and gaseous tension principle with detection compound content, reach to reduce and detect cost, guarantee detection accuracy and increase purposes such as carrying convenience.
Edge is, for reaching above-mentioned purpose, portable compounds detection device of the present invention includes a sample and inserts district, a reaction zone, a detecting element and and inspect member, wherein, sample is inserted the district and is used to provide the operating side to insert the desire samples tested, reaction zone connects sample and inserts the district, and sample can be inserted from sample and be distinguished and enter in the reaction zone.Detecting element is located in the reaction zone, and after sample entered reaction zone, detecting element can be had an effect to produce gas with a certain compound in the sample, and this compound is the target that operating side institute desire detects.Inspect member coupled reaction district, and inspect and be marked with indicating liquid in the member, when gas that detecting element and compound effects are produced enter inspect member after, this gas promptly causes the pressure of mobile indicating liquid, and whether the operating side can by the amount of movement of inspecting indicating liquid has the content of this compound and this compound in the judgement sample.
From the above, but because of inserting the capacity predetermined fixed in district according to sample of the present invention, guaranteeing to detect the accuracy of compounds content, and sample is inserted the district and can be had a switch and enter reaction zone with the control sample.Reaction zone is a confined space, influences testing result to prevent outside gas from entering, and reaction zone more can be set up an air-extractor to extract the potpourri of gaseous state.Reaction zone and inspecting between the member is by a filter plant, and it is only for the compound that filters gaseous state.Inspecting member is a U type tubing string, can indicating liquid be moved by the air pressure balance principle by this, and then inspects amount of movement to judge the content of compound.
Indicating liquid can be oil or water, and it has opaque color, inspects the member place and then has a plurality of scales, conveniently inspects above-mentioned amount of movement or compounds content.Moreover if compound methyl alcohol, formaldehyde or formic acid that desire of the present invention detects, then detecting element can be Mn oxide, and the gas that its effect produces is carbon dioxide.In addition, portable compounds detection device of the present invention more can combine with portable apparatus commonly used, for example in conjunction with automobile remote-control device, mobile phone device or bottle opener etc.
Description of drawings
Fig. 1 is a kind of flow chart of steps that adopts visual colorimetry with the check methanol content of prior art;
Fig. 2 is the synoptic diagram of portable compounds detection device of the present invention;
Fig. 3 is the synoptic diagram of first embodiment of the disclosed portable compounds detection device of the present invention;
Fig. 4 is the synoptic diagram of second embodiment of the disclosed portable compounds detection device of the present invention;
Fig. 5 is the graph of a relation of disclosed pressure reduction of the present invention and methanol concentration.
The figure number explanation:
S11-S13: process step; 2: portable compounds detection device;
21: sample is inserted the district; 211: sample;
22: reaction zone; 221: gas;
23: detecting element; 24: inspect member;
241: indicating liquid; 3: portable compounds detection device;
31: operation valve; 32: the gaseous compound filtrator;
33: scale; 35: potassium permanganate reagent;
36:U type tubing string; 361: the left side;
362: the right side; 37: opaque fluid;
38: needle-like mechanism; 39: rice wine;
4: portable compounds detection device; 41: pressure sensor;
42: Inductance valve; 51: methanol concentration;
52: pressure reduction.
Embodiment
Hereinafter with reference to correlative type, the portable compounds detection device according to preferred embodiment of the present invention is described, wherein components identical will be illustrated with identical reference marks.
See also Fig. 2, it is the synoptic diagram of portable compounds detection device of the present invention, this portable compounds detection device 2 includes sample and inserts district 21, reaction zone 22, detecting element 23 and inspect member 24, wherein, sample is inserted district 21 and is used to provide the operating side to insert sample 211, and, can close the opening of inserting sample 211 when the sample 211 of inserting reaches certain when a certain amount of.Be provided with detecting element 23 in the reaction zone 22, after sample is inserted district 21 and closed the opening of inserting sample 211, by the control of operating side, sample inserted district 21 be communicated with reaction zone 22, sample 211 is promptly inserted from sample and is distinguished 21 and enter reaction zone 22.In the reaction zone 22, detecting element 23 is promptly had an effect with sample 211, if contain the compound that 2 desires of this portable compounds detection device detect in the sample 211, then detecting element 23 will produce gas 221 with sample 211 effects.Inspect and be marked with indicating liquid 241 in the member 24, but and inspect between member 24 and the reaction zone 22 circulation of air feed attitude compound, when producing gas 221 in the reaction zone 22, gas 221 can enter to be inspected in the member 24, to cause the pressure of mobile indicating liquid 241 by this, the operating side can be according to the amount of movement of indicating liquid 241 with the anti-content that pushes away this compound in this sample 211.Above-mentioned sample 211 can be the potpourri of liquid state or gaseous state, the compound that this device 2 is fit to detect is methyl alcohol, formaldehyde or formic acid, detecting element 23 is preferably Mn oxide, gas 221 is generally carbon dioxide, inspect member 24 and be preferably U type tubing string, indicating liquid 241 can be opaque oil or water, and this device 2 can be bonded to portable apparatus commonly used, for example automobile remote-control device, mobile phone device or bottle opener.
See also Fig. 3, it is the synoptic diagram of first embodiment of the disclosed portable compounds detection device of the present invention.Among the figure, this portable compounds detection device 3 not only includes sample and inserts district 21, reaction zone 22, potassium permanganate reagent 35 and U type tubing string 36, more insert between district 21 and the reaction zone 22 and be provided with an operation valve 31 in sample, between reaction zone 22 and U type tubing string 36, be provided with a gaseous compound filtrator 32, indicate a plurality of scales 33 in U type tubing string 36 sides.Portable compounds detection device 3 is applicable to carry to detect in the liquefied mixture whether contain excessive methanol, in order to avoid mistake is drunk fake wine, present embodiment is to be example to detect rice wine 39.Sample is inserted district 21 and is had the opening of pouring rice wine 39 into is provided, and after filling rice wine 39, district 21 and reaction zone 22 can be inserted to be communicated with sample by opening controlling valve 31 in the operating side, make rice wine 39 flow into reaction zones 22, and closed control valve 31 immediately.Reaction zone 22 is to have needle-like mechanism 38, is used to penetrate the packing material of potassium permanganate reagent 35 and makes potassium permanganate reagent 35 flow into reaction zone 22.After rice wine 39 and potassium permanganate reagent 35 all flow into reaction zone 22, can jiggle this device 3 to mix rice wine 39 and potassium permanganate reagent 35.Ethanol in the rice wine 39 (C2H5OH) will produce acetate (CH3COOH) after producing redox reaction with potassium permanganate 35, and it is comparatively stable, can not react with potassium permanganate 35 more at normal temperatures.If contain methyl alcohol (CH3OH) in the rice wine 39, then redox reaction will take place and produce formic acid (HCOOH) in methyl alcohol (CH3OH) and potassium permanganate 35, again, at normal temperatures, formic acid is to produce carbon dioxide (CO2) and water with potassium permanganate 35 reactions, and the carbon dioxide of generation promptly enters in the U type tubing string 36 via gaseous compound filtrator 32.Wherein, the reaction equation of methyl alcohol and potassium permanganate 35 and formic acid and potassium permanganate 35 is following listed respectively:
3R-CH
2OH+4MnO
4 -+4H
+→3R-CO
2H+4MnO
2(S)+5H
2O...(301)
3HCOOH+2MnO
4 -+2H
+→3CO
2(g)+2MnO
2(S)+4H
2O.............(302)
Moreover, be marked with opaque fluid 37 in the U type tubing string 36, before the carbon dioxide of formic acid and potassium permanganate 35 reaction generations did not enter U type tubing string 36, opaque fluid 37 was identical at the height at U type tubing string 36 two ends.After carbon dioxide enters U type tubing string 36, promptly increase the pressure in U type tubing string 36 left sides 361, left side 361 pressure will cause the opaque fluid 37 in left side 361 to move down greater than right side 362 pressure by this, and the opaque fluid 37 on right side 362 moves up.To calculate the amount of movement of opaque fluid 37, estimate the gas flow that produces by the U type tubing string 36 other scales 33 that indicate by this, and then the anti-methanol content of releasing in the rice wine 39 that detects.Above-mentioned potassium permanganate reagent 35 is deserted packing, and portable compounds detection device 3 is reusable.
See also Fig. 4, it is the synoptic diagram of second embodiment of the disclosed portable compounds detection device of the present invention.Among the figure, this portable compounds detection device 4 not only includes sample and inserts district 21, reaction zone 22, potassium permanganate reagent 35 and pressure sensor 41, more insert between district 21 and the reaction zone 22 and be provided with an Inductance valve 42, between reaction zone 22 and pressure sensor 41, be provided with a gaseous compound filtrator 32 in sample.This portable compounds detection device 4 is applicable to carry to detect in the gaseous mixture whether contain excessive methanol, in order to avoid mistake is drunk fake wine, present embodiment is to be example to detect in the eating and drinking establishment.Sample is inserted district 21 and is had air exhauster and condenser, when being full of the food steam in the eating and drinking establishment, air exhauster can operate steam is sucked sample and insert in the district, condenser is about to the steam cooling, make it be converted to liquid,, promptly open to be communicated with sample and insert district 21 and reaction zone 22 when Inductance valve 42 induced liquids reach when a certain amount of, the liquid that sample is inserted in the district 21 flows into reaction zone 22, and Inductance valve 42 is closed immediately.Reaction zone 22 is to have needle-like mechanism 38, is used to penetrate the packing material of potassium permanganate reagent 35, after liquid and potassium permanganate reagent 35 all flow into reaction zone 22, can jiggle this device 4 with mixing material and potassium permanganate reagent 35.In the liquid if contain methyl alcohol, then redox reaction will take place and produce formic acid in methyl alcohol and potassium permanganate 35, formic acid produces carbon dioxide and water with potassium permanganate 35 reactions again, and the carbon dioxide of generation promptly enters in the pressure sensor 41 via gaseous compound filtrator 32.Pressure sensor 41 is before the sensing reaction and reacted pressure reduction, can estimate the gas flow of generation by this, and then the anti-methanol content of releasing in the liquid that detects.Above-mentioned potassium permanganate reagent 35 is deserted packing, and portable compounds detection device 4 is reusable.
Continue, see also Fig. 5, it is the graph of a relation of disclosed pressure reduction of the present invention and methanol concentration, wherein, methanol concentration 51 is high more, and then pressure reduction 52 is big more, and linear, so can utilize methyl alcohol and the effect of potassium permanganate reagent is to produce carbon dioxide, ethanol does not then produce the characteristic of carbon dioxide as the foundation that detects fake wine, and is detected by gaseous tension, and is highly sensitive, therefore, the present invention also can be used for detecting the sample with similarity.
The above only is an illustrative, but not is restricted person.Anyly do not break away from spirit of the present invention and category, and, all should be contained in the claim scope of the present invention its equivalent modifications of carrying out or change.
Claims (11)
1, a kind of portable compounds detection device is used for detecting the content of a sample one compound, it is characterized in that this portable compounds detection device comprises:
One sample is inserted the district, provides to insert this sample;
One reaction zone connects this sample and inserts the district, inserts the district for this sample from this sample and enters this reaction zone;
One detecting element is arranged in this reaction zone, for this sample in this compound have an effect to produce a gas;
One inspects member, connects this reaction zone receiving this gas, and this to inspect in the member be to be marked with an indicating liquid or to be provided with a pressure sensor;
Wherein, by pressure that this gas produced to move this indicating liquid, according to this amount of movement, to judge the content of this compound.
2, portable compounds detection device according to claim 1 is characterized in that, this sample is the potpourri of liquid state or gaseous state.
3, portable compounds detection device according to claim 1 is characterized in that, this compound is methyl alcohol, formaldehyde or formic acid, and this detecting element is Mn oxide, and this gas is carbon dioxide by this.
4, portable compounds detection device according to claim 1 is characterized in that, this detecting element is deserted packing.
5, portable compounds detection device according to claim 1 is characterized in that, this portable compounds detection device is reusable.
6, portable compounds detection device according to claim 1 is characterized in that, this sample is inserted the capacity in district for fixing, to guarantee to detect the accuracy of this compounds content.
7, portable compounds detection device according to claim 1 is characterized in that, this reaction zone is a confined space, influences testing result to prevent outside gas from entering.
8, portable compounds detection device according to claim 1 is characterized in that, this inspects member is a U type tubing string.
9, portable compounds detection device according to claim 1 is characterized in that, this indicating liquid is oil or water, and can have opaque color.
10, portable compounds detection device according to claim 1 is characterized in that, this is inspected the member place and has a plurality of scales, for the content of inspecting this amount of movement or this compound.
11, portable compounds detection device according to claim 1 is characterized in that, it is to combine with a portable apparatus commonly used, and this portable apparatus commonly used is an automobile remote-control device, a mobile phone device or a bottle opener.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100901624A CN101097179A (en) | 2006-06-29 | 2006-06-29 | Portable compounds detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100901624A CN101097179A (en) | 2006-06-29 | 2006-06-29 | Portable compounds detection device |
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| Publication Number | Publication Date |
|---|---|
| CN101097179A true CN101097179A (en) | 2008-01-02 |
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ID=39011170
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006100901624A Pending CN101097179A (en) | 2006-06-29 | 2006-06-29 | Portable compounds detection device |
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|---|---|
| CN (1) | CN101097179A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106053688A (en) * | 2016-06-28 | 2016-10-26 | 上海化工研究院 | Super-miniature reactor for GC-MS headspace sampling qualitative analysis |
| CN113324982A (en) * | 2021-05-07 | 2021-08-31 | 钟皇生 | A convenient formaldehyde test box for house after fitment |
-
2006
- 2006-06-29 CN CNA2006100901624A patent/CN101097179A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106053688A (en) * | 2016-06-28 | 2016-10-26 | 上海化工研究院 | Super-miniature reactor for GC-MS headspace sampling qualitative analysis |
| CN113324982A (en) * | 2021-05-07 | 2021-08-31 | 钟皇生 | A convenient formaldehyde test box for house after fitment |
| CN113324982B (en) * | 2021-05-07 | 2023-01-17 | 深圳汉威物联有限公司 | A convenient formaldehyde test box for house after fitment |
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Open date: 20080102 |